855538 has 8 divisors (see below), whose sum is σ = 1324800. Its totient is φ = 413940.

The previous prime is 855527. The next prime is 855581. The reversal of 855538 is 835558.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

855538 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6838 + ... + 6961.

It is an arithmetic number, because the mean of its divisors is an integer number (165600).

2⁸⁵⁵⁵³⁸ is an apocalyptic number.

855538 is a deficient number, since it is larger than the sum of its proper divisors (469262).

855538 is a wasteful number, since it uses less digits than its factorization.

855538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13832.

The product of its digits is 24000, while the sum is 34.

The square root of 855538 is about 924.9529717775. The cubic root of 855538 is about 94.9321029163.

The spelling of 855538 in words is "eight hundred fifty-five thousand, five hundred thirty-eight".